gistfile1.cpp

ULONG GetZoneProcedure(USHORT Op)
{
    ULONG Table = g_Ctx.Addr[VA_ZONETABLE];

    __asm
    {
        mov     esi, Table
        movsx   eax, word ptr [Op]
        add     eax, 0FFFFFF8Dh
        mov     edi, [esi+eax*4]
        xor     eax, eax
        mov     al, byte ptr [edi+9]
        cmp     eax, 0E8h
        mov     eax, 0
        jne     _DO_NOT_MATCH
        mov     edx, [edi+0Ah]
        lea     eax, [edi+edx+0Eh]
    _DO_NOT_MATCH:
    }
}

void ClCallZoneProcedure(USHORT Op, PVOID Buffer)
{
    ULONG Function = GetZoneProcedure(Op);
    if (Function == 0) {
        return;
    }

    ULONG PtrThis = g_Ctx.Addr[VA_GAMEBASE];

    __try
    {
        __asm
        {
            mov     eax, PtrThis
            mov     ecx, [eax+4]
            push    Buffer
            call    dword ptr [Function]
        }
    }
    __except (OutputExceptionInfo(GetExceptionInformation()))
    {
        DbgPrintW(_L("EXCEPTION ClCallZoneProcedure OP=%04X BUFFER=%08X\n"), Op, Buffer);
    }
}

void ClSetEffectState(ULONG ObjectID, USHORT StateType, UCHAR Flag)
{
    UCHAR Buffer[9];
    *reinterpret_cast<USHORT*>(Buffer) = PACKET_ZC_EFFECT_STATE;
    *reinterpret_cast<USHORT*>(Buffer+2) = StateType;
    *reinterpret_cast<ULONG*>(Buffer+4) = ObjectID;
    *reinterpret_cast<UCHAR*>(Buffer+8) = Flag;

    ClCallZoneProcedure(PACKET_ZC_EFFECT_STATE, Buffer);
}